Quest to reduce firmware size

@merge

Hello guys/gals

There is tickets opened to:

remove networking ( x230 x220 t430 t420 base boards: remove networking? #564 ), with corresponding PR attempt to remove networking with cleanup ( X230: remove networking (and cleanup) #572 ) while cryptsetup seemed to depend on CONFIG_NET and some explicit crypto modules in the past ( cryptsetup kernel backend requires CONFIG_NET #79 ), while putting CONFIG_LINUX_E1000E=n in board config liberates 295688 bytes. @merge : Is that enough?
reduce libslang.so.2 footprint ( Reduce libslang.so.2 library footprint #517 )
reduce kernel crypto footprint (what ticket?)

The priorities should be, see below for binaries/libraries footprints:

Reduce libgcrypt.so.20 footprint (1145176 uncompressed bytes)
Reduce lvm footprint (1599032 uncompressed bytes)
Reduce gpg footprint (869568 uncompressed bytes)
libcairo.so.2 footprint (851968 uncompressed bytes)
libpixman-1.so.0 footprint (667048 uncompressed bytes)

EDIT: one liner to decompress and differenciate builds space

To help in finding consumed space, here is what I do.

make BOARD=x230
cd build/x230/
xz --decompress initrd.cpio.xz
cpio --extract < initrd.cpio
cpio --extract < heads.cpio
cpio --extract < modules.cpio

find . -type f -ls | sort -r -n -k7

789884 12288 -rw-r--r-- 1 user 789885 11912 -rw-r--r-- 1 user 789821 10648 -rw-r--r-- 1 user 789880 2868 -rw-r--r-- 1 user 789986 1564 -rwx------ 1 user 790106 1120 -rwx------ 1 user 789881 968 -rw-r--r-- 1 user 789943 852 -rwx------ 1 user 790103 832 -rwx------ 1 user 790113 652 -rwx------ 1 user 790102 556 -rwx------ 1 user 789938 480 -rwx------ 1 user 789900 476 -rwx------ 1 user 790018 384 -rwx------ 1 user 789944 352 -rwx------ 1 user 790117 328 -rwx------ 1 user 790105 320 -rwx------ 1 user 789882 316 -rw-r--r-- 1 user 790109 312 -rwx------ 1 user 790123 292 -rw------- 1 user 790108 216 -rwx------ 1 user 790114 200 -rwx------ 1 user 789925 180 -rwx------ 1 user 790037 172 -rwx------ 1 user 790127 168 -rw------- 1 user 790131 160 -rw------- 1 user 789960 156 -rwx------ 1 user 790104 156 -rwx------ 1 user 789924 132 -rwx------ 1 user 790130 132 -rw------- 1 user 790051 124 -rwx------ 1 user 790107 120 -rwx------ 1 user 790097 108 -rw------- 1 user 790121 108 -rwx------ 1 user 790119 96 -rwx------ 1 user 789983 76 -rwx------ 1 user 790101 72 -rwx------ 1 user 790124 68 -rw------- 1 user 789914 64 -rwx------ 1 user 789913 56 -rwx------ 1 user 790129 52 -rw------- 1 user 790004 52 -rwx------ 1 user 790126 52 -rw------- 1 user 789934 48 -rwx------ 1 user 790112 48 -rwx------ 1 user 790111 48 -rwx------ 1 user 790115 48 -rwx------ 1 user 790116 44 -rwx------ 1 user 790128 40 -rw------- 1 user 790089 36 -rwx------ 1 user 790068 32 -rwx------ 1 user 789977 32 -rwx------ 1 user 789906 24 -rwx------ 1 user 789940 24 -rwx------ 1 user 790019 20 -rwx------ 1 user 790087 20 -rw------- 1 user 790118 20 -rwx------ 1 user 789949 20 -rwx------ 1 user 789904 16 -rwx------ 1 user 790110 16 -rwx------ 1 user 790056 16 -rwx------ 1 user 790120 16 -rwx------ 1 user 790085 16 -rw------- 1 user 789879 12 -rw-r--r-- 1 user 790007 12 -rwx------ 1 user 790125 12 -rw------- 1 user 790132 12 -rw------- 1 user 789931 12 -rwx------ 1 user 789969 12 -rwx------ 1 user 789945 12 -rwx------ 1 user 790014 12 -rwx------ 1 user 789966 8 -rwx------ 1 user 790002 8 -rwx------ 1 user 789993 8 -rwx------ 1 user 790049 8 -rwx------ 1 user 789957 8 -rwx------ 1 user 789896 8 -rwx------ 1 user 790011 8 -rwx------ 1 user 789968 8 -rwx------ 1 user 789994 8 -rwx------ 1 user 789965 4 -rwx------ 1 user 790098 4 -rwx------ 1 user 789910 4 -rwx------ 1 user 789961 4 -rwx------ 1 user 790020 4 -rwx------ 1 user 789970 4 -rwx------ 1 user 789962 4 -rwx------ 1 user 789937 4 -rwx------ 1 user 789936 4 -rwx------ 1 user 790066 4 -rwx------ 1 user 789964 4 -rwx------ 1 user 790021 4 -rwx------ 1 user 790061 4 -rwx------ 1 user 789883 4 -rw------- 1 user 789967 4 -rwx------ 1 user 790086 4 -rw------- 1 user 789921 4 -rwx------ 1 user 789963 4 -rwx------ 1 user 790134 4 -rwx------ 1 user 789941 4 -rwx------ 1 user 789971 4 -rwx------ 1 user 790151 4 -rwx------ 1 user 790052 4 -rwx------ 1 user 789976 4 -rwx------ 1 user 790140 4 -rwx------ 1 user 789972 4 -rwx------ 1 user 789905 4 -rwx------ 1 user 790082 4 -rw------- 1 user 789997 4 -rwx------ 1 user 790057 4 -rwx------ 1 user 790062 4 -rwx------ 1 user 790074 4 -rwx------ 1 user 790012 4 -rwx------ 1 user 789939 4 -rwx------ 1 user 790092 4 -rwx------ 1 user 790072 4 -rwx------ 1 user 790013 4 -rwx------ 1 user 790065 4 -rwx------ 1 user 790008 4 -rwx------ 1 user 790088 4 -rw------- 1 user 790093 4 -rw------- 1 user 789946 4 -rwx------ 1 user 789888 4 -rw------- 1 user 789920 4 -rwx------ 1 user 790073 4 -rwx------ 1 user 790096 4 -rw------- 1 user 790095 4 -rw------- 1 user 790091 4 -rw------- 1 user 790090 4 -rw------- 1 user 789889 4 -rw------- 1 user user 12582912 Jun 28 13:00 ./coreboot.rom
user 12212224 Jun 28 13:00 ./initrd.cpio
user 10903552 Jun 28 13:00 ./tools.cpio
user 2936832 Jun 28 12:59 ./bzImage
user 1599032 Jun 28 13:01 ./bin/lvm
user 1145176 Jun 28 13:01 ./lib/libgcrypt.so.20
user 989696 Jun 28 12:59 ./modules.cpio
user 869568 Jun 28 13:01 ./bin/gpg
user 851968 Jun 28 13:01 ./lib/libcairo.so.2
user 667048 Jun 28 13:01 ./lib/libpixman-1.so.0
user 568680 Jun 28 13:01 ./lib/libc.so
user 490640 Jun 28 13:01 ./bin/flashrom
user 486024 Jun 28 13:01 ./bin/busybox
user 391760 Jun 28 13:01 ./bin/scdaemon
user 359960 Jun 28 13:01 ./bin/gpg-agent
user 332504 Jun 28 13:01 ./lib/libtpm.so
user 324784 Jun 28 13:01 ./lib/libdevmapper.so.1.02
user 321024 Jun 28 13:00 ./heads.cpio
user 318464 Jun 28 13:01 ./lib/libmbedcrypto.so.0
user 295688 Jun 28 13:01 ./lib/modules/e1000e.ko
user 217192 Jun 28 13:01 ./lib/libksba.so.8
user 201096 Jun 28 13:01 ./lib/libpng16.so.16
user 180960 Jun 28 13:01 ./bin/dropbear
user 172544 Jun 28 13:01 ./bin/ssh
user 170512 Jun 28 13:01 ./lib/modules/mmc_core.ko
user 160792 Jun 28 13:01 ./lib/modules/xhci-hcd.ko
user 158952 Jun 28 13:01 ./bin/kexec
user 155744 Jun 28 13:01 ./lib/libcryptsetup.so.4
user 133216 Jun 28 13:01 ./bin/dmsetup
user 132520 Jun 28 13:01 ./lib/modules/usb-storage.ko
user 122992 Jun 28 13:01 ./bin/tpm
user 120024 Jun 28 13:01 ./lib/libgpg-error.so.0
user 108800 Jun 28 13:01 ./etc/wordlist_en_eff.txt
user 107512 Jun 28 13:01 ./lib/libz.so.1
user 98064 Jun 28 13:01 ./lib/libusb-1.0.so.0
user 73920 Jun 28 13:01 ./bin/lspci
user 73416 Jun 28 13:01 ./lib/libassuan.so.0
user 66208 Jun 28 13:01 ./lib/modules/ehci-hcd.ko
user 62680 Jun 28 13:01 ./bin/cryptsetup-reencrypt
user 55760 Jun 28 13:01 ./bin/cryptsetup
user 53136 Jun 28 13:01 ./lib/modules/sdhci.ko
user 52520 Jun 28 13:01 ./bin/pinentry-tty
user 49352 Jun 28 13:01 ./lib/modules/mmc_block.ko
user 49032 Jun 28 13:01 ./bin/fbwhiptail
user 48672 Jun 28 13:01 ./lib/libpci.so.3.5.4
user 48672 Jun 28 13:01 ./lib/libpci.so.3
user 45160 Jun 28 13:01 ./lib/libpopt.so.0
user 43864 Jun 28 13:01 ./lib/libqrencode.so.3
user 38104 Jun 28 13:01 ./lib/modules/sdhci-pci.ko
user 35654 Jun 28 13:01 ./etc/functions
user 29584 Jun 28 13:01 ./bin/veritysetup
user 29568 Jun 28 13:01 ./bin/libremkey_hotp_verification
user 23696 Jun 28 13:01 ./bin/cbmem
user 21064 Jun 28 13:01 ./bin/flashtool
user 20400 Jun 28 13:01 ./bin/scp
user 19992 Jun 28 13:01 ./etc/distro/keys/tails.key
user 18800 Jun 28 13:01 ./lib/libusb-0.1.so.4
user 16936 Jun 28 13:01 ./bin/gui-init
user 15368 Jun 28 13:01 ./bin/cbfs
user 14912 Jun 28 13:01 ./lib/libnpth.so.0
user 14464 Jun 28 13:01 ./bin/uefi
user 13984 Jun 28 13:01 ./lib/libuuid.so.1
user 12413 Jun 28 13:01 ./etc/distro/keys/fedora.key
user 11225 Jun 28 13:00 ./hashes.txt
user 10776 Jun 28 13:01 ./bin/poke
user 10592 Jun 28 13:01 ./lib/modules/ehci-pci.ko
user 10456 Jun 28 13:01 ./lib/modules/xhci-pci.ko
user 10409 Jun 28 13:01 ./bin/factory-reset-libremkey.sh
user 10093 Jun 28 13:01 ./bin/kexec-select-boot
user 8780 Jun 28 13:01 ./bin/gpg-gui.sh
user 8581 Jun 28 13:01 ./bin/reencrypt-luks
user 7944 Jun 28 13:01 ./bin/kexec-save-default
user 7872 Jun 28 13:01 ./bin/peek
user 7556 Jun 28 13:01 ./bin/mount-sdcard
user 7448 Jun 28 13:01 ./bin/totp
user 7064 Jun 28 13:01 ./bin/hotp
user 6832 Jun 28 13:01 ./bin/base32
user 5304 Jun 28 13:01 ./bin/qrenc
user 4972 Jun 28 13:01 ./bin/kexec-seal-key
user 4185 Jun 28 13:01 ./bin/mount-usb
user 3654 Jun 28 13:01 ./bin/kexec-parse-boot
user 3622 Jun 28 13:01 ./init
user 3329 Jun 28 13:01 ./bin/config-gui.sh
user 3099 Jun 28 13:01 ./bin/kexec-boot
user 2753 Jun 28 13:01 ./bin/seal-libremkey
user 2628 Jun 28 13:01 ./bin/kexec-sign-config
user 2379 Jun 28 13:01 ./bin/kexec-insert-key
user 2107 Jun 28 13:01 ./bin/flash.sh
user 2077 Jun 28 13:01 ./bin/flash-gui.sh
user 2070 Jun 28 13:01 ./bin/usb-scan
user 2033 Jun 28 13:01 ./bin/kexec-parse-bls
user 2027 Jun 28 13:01 ./bin/seal-totp
user 1839 Jun 28 13:01 ./bin/unseal-hotp
user 1748 Jun 28 13:01 ./.ash_history
user 1689 Jun 28 13:01 ./bin/kexec-save-key
user 1629 Jun 28 13:01 ./etc/distro/keys/qubes-4.key
user 1552 Jun 28 13:01 ./bin/diceware.sh
user 1375 Jun 28 13:01 ./bin/kexec-iso-init
user 1373 Jun 28 13:01 ./mount-boot
user 1299 Jun 28 13:01 ./bin/generic-init
user 1119 Jun 28 13:01 ./bin/kexec-unseal-key
user 1000 Jun 28 13:01 ./sbin/insmod
user 983 Jun 28 13:01 ./bin/tpm-reset
user 965 Jun 28 13:01 ./bin/libremkey_hotp_initialize
user 922 Jun 28 13:01 ./sbin/config-dhcp.sh
user 875 Jun 28 13:01 ./bin/key-init
user 799 Jun 28 13:01 ./bin/cbfs-init
user 736 Jun 28 13:01 ./etc/config
user 675 Jun 28 13:01 ./bin/network-init-recovery
user 661 Jun 28 13:01 ./bin/uefi-init
user 634 Jun 28 13:01 ./bin/unseal-totp
user 574 Jun 28 13:01 ./bin/x230-flash.init
user 366 Jun 28 13:01 ./bin/qubes-measure-luks
user 360 Jun 28 13:01 ./bin/flashrom-kgpe-d16-openbmc.sh
user 340 Jun 28 13:01 ./etc/keylime-init
user 320 Jun 28 13:01 ./bin/wget-measure.sh
user 258 Jun 28 13:01 ./bin/reboot
user 220 Jun 28 13:01 ./bin/usb-init
user 205 Jun 28 13:01 ./bin/poweroff
user 197 Jun 28 13:01 ./etc/fstab
user 174 Jun 28 13:01 ./etc/motd
user 106 Jun 28 13:01 ./bin/gpgv
user 73 Jun 28 13:01 ./.gnupg/gpg-agent.conf
user 62 Jun 28 13:01 ./bin/diceware-eff.sh
user 35 Jun 28 13:01 ./bin/whiptail
user 27 Jun 28 13:01 ./etc/shells
user 27 Jun 28 13:01 ./etc/passwd
user 20 Jun 28 13:01 ./etc/hosts
user 10 Jun 28 13:01 ./etc/group
user 10 Jun 28 13:01 ./.gnupg/gpg.conf

A few other ideas:

Clean up board-specific files from other devices. (Example is flashrom-kgpe-d16-openbmc.sh is present in X230 builds, x230-flash.init being in main X230 or on Chell Chromebook). This change will likely need to happen during the build process.
Move flash definitions from flash.sh to the board config files. As we support more boards, this will be critical, as all maintained boards are presently defined in flash.sh, and as this project supports more and more boards, flash.sh will get larger and larger. I've started work on this.

These may not be as high priority as other changes, but ones to certainly look at to help reduce firmware size, especially as the project grows.

@SebastianMcMillan : Those are good cleanup ideas, but unfortunately, will not impact the initrd.cpio.xz (including heads.cpio and tools.cpio), those text files being highly compressed.

The problem lies in binaries, not higly compressed under initrd.cpio.xz

This article (or the series it comes from) may yield some inspiration:
https://lwn.net/Articles/748198/
Edit: this one is probably more useful https://lwn.net/Articles/741494/

Solution lies in #307

@zaolin

@zaolin pointed out:

Update: Getting rid of libgcrypt and replacement for gpg would be a good way to safe 2MB in total.
See, https://sequoia-pgp.org/ as alternative

@zaolin

Update: Getting rid of libgcrypt and replacement for gpg would be a good way to safe 2MB in total.
See, https://sequoia-pgp.org/ as alternative

@zaolin : Unfortunately, there is no smartcard support in sequoia-pgp ATM, on which Heads relies on for verified /boot integrity.

@tlaurion

@tlaurion ask them for support, they should have basic support for it. They are on IRC #sequoia at Freenode

Here we go again, since

Makefile: Support passing environment variables through make--and use… #710 would require newer versions of gpg toolchain, which won't fit in actual x230 board config. EDIT: it actually fitted.
Enable vboot on Lenovo devices for measured boot #709 non neutered ME board configs lack around 300k to fit VBOOT in.

To troubleshoot:

make BOARD=x230
cd build/x230
xz -d initrd.cpio.xz ; for i in initrd.cpio modules.cpio tools.cpio heads.cpio; do cpio -i < $i; done && find . -type f -ls | sort -r -n -k7 |grep -v cpio

Output:

    28192   2956 -rw-r--r--   1 user     user      3023312 May  3 12:25 ./bzImage
    61393   1592 -rwx------   1 user     user      1627856 May  3 12:45 ./bin/lvm
    61507   1132 -rwx------   1 user     user      1156424 May  3 12:45 ./lib/libgcrypt.so.20
    61352    892 -rwx------   1 user     user       911264 May  3 12:45 ./bin/gpg
    61504    740 -rwx------   1 user     user       757232 May  3 12:45 ./lib/libcairo.so.2
    61515    652 -rwx------   1 user     user       666216 May  3 12:45 ./lib/libpixman-1.so.0
    61502    584 -rwx------   1 user     user       596544 May  3 12:45 ./lib/libc.so
    61347    556 -rwx------   1 user     user       568264 May  3 12:45 ./bin/flashrom
    61313    472 -rwx------   1 user     user       483160 May  3 12:45 ./bin/busybox
    61424    400 -rwx------   1 user     user       407784 May  3 12:45 ./bin/scdaemon
    61353    368 -rwx------   1 user     user       376024 May  3 12:45 ./bin/gpg-agent
    61519    332 -rwx------   1 user     user       339304 May  3 12:45 ./lib/libtpm.so
    61506    328 -rwx------   1 user     user       333240 May  3 12:45 ./lib/libdevmapper.so.1.02
    61511    320 -rwx------   1 user     user       325104 May  3 12:45 ./lib/libmbedcrypto.so.0
    61524    300 -rw-------   1 user     user       304272 May  3 12:45 ./lib/modules/e1000e.ko
    61510    224 -rwx------   1 user     user       227696 May  3 12:45 ./lib/libksba.so.8
    61516    204 -rwx------   1 user     user       207912 May  3 12:45 ./lib/libpng16.so.16
    61335    184 -rwx------   1 user     user       184824 May  3 12:45 ./bin/dropbear
    61442    176 -rwx------   1 user     user       176408 May  3 12:45 ./bin/ssh
    61369    168 -rwx------   1 user     user       170984 May  3 12:45 ./bin/kexec
    61528    160 -rw-------   1 user     user       159840 May  3 12:45 ./lib/modules/xhci-hcd.ko
    61505    156 -rwx------   1 user     user       159000 May  3 12:45 ./lib/libcryptsetup.so.4
    61334    136 -rwx------   1 user     user       137464 May  3 12:45 ./bin/dmsetup
    61527    132 -rw-------   1 user     user       132360 May  3 12:45 ./lib/modules/usb-storage.ko
    61509    128 -rwx------   1 user     user       130000 May  3 12:45 ./lib/libgpg-error.so.0
    61456    124 -rwx------   1 user     user       126584 May  3 12:45 ./bin/tpm
    61523    108 -rwx------   1 user     user       108832 May  3 12:45 ./lib/libz.so.1
    61521     96 -rwx------   1 user     user        96896 May  3 12:45 ./lib/libusb-1.0.so.0
    61501     76 -rwx------   1 user     user        76736 May  3 12:45 ./lib/libassuan.so.0
    61390     72 -rwx------   1 user     user        73600 May  3 12:45 ./bin/lspci
    61525     64 -rw-------   1 user     user        64800 May  3 12:45 ./lib/modules/ehci-hcd.ko
    61326     64 -rwx------   1 user     user        62328 May  3 12:45 ./bin/cryptsetup-reencrypt
    61325     60 -rwx------   1 user     user        59144 May  3 12:45 ./bin/cryptsetup
    61514     52 -rwx------   1 user     user        52272 May  3 12:45 ./lib/libpci.so.3.5.4
    61513     52 -rwx------   1 user     user        52272 May  3 12:45 ./lib/libpci.so.3
    61411     52 -rwx------   1 user     user        52200 May  3 12:45 ./bin/pinentry-tty
    61343     52 -rwx------   1 user     user        51616 May  3 12:45 ./bin/fbwhiptail
    61517     48 -rwx------   1 user     user        48088 May  3 12:45 ./lib/libpopt.so.0
    61518     48 -rwx------   1 user     user        47448 May  3 12:45 ./lib/libqrencode.so.3
    61473     32 -rwx------   1 user     user        32560 May  3 12:45 ./bin/veritysetup
    61319     28 -rwx------   1 user     user        27048 May  3 12:45 ./bin/cbmem
    61425     24 -rwx------   1 user     user        22664 May  3 12:45 ./bin/scp
    61349     24 -rwx------   1 user     user        22432 May  3 12:45 ./bin/flashtool
    61488     20 -rw-------   1 user     user        19992 May  3 12:45 ./etc/distro/keys/tails.key
    61495     20 -rw-------   1 user     user        18852 May  3 12:45 ./etc/oem/keys/insurgo.key
    61520     20 -rwx------   1 user     user        18464 May  3 12:45 ./lib/libusb-0.1.so.4
    61317     20 -rwx------   1 user     user        18352 May  3 12:45 ./bin/cbfs
    61461     20 -rwx------   1 user     user        18320 May  3 12:45 ./bin/uefi
    61358     16 -rwx------   1 user     user        14657 May  3 12:45 ./bin/gui-init
    61522     16 -rwx------   1 user     user        14656 May  3 12:45 ./lib/libuuid.so.1
    61512     16 -rwx------   1 user     user        14552 May  3 12:45 ./lib/libnpth.so.0
    61414     16 -rwx------   1 user     user        14200 May  3 12:45 ./bin/poke
    61407     12 -rwx------   1 user     user        12056 May  3 12:45 ./bin/oem-factory-reset
    61486     12 -rw-------   1 user     user        10955 May  3 12:45 ./etc/distro/keys/fedora.key
    61526     12 -rw-------   1 user     user        10728 May  3 12:45 ./lib/modules/ehci-pci.ko
    61529     12 -rw-------   1 user     user        10568 May  3 12:45 ./lib/modules/xhci-pci.ko
    61409     12 -rwx------   1 user     user        10096 May  3 12:45 ./bin/peek
    61309     12 -rwx------   1 user     user        10088 May  3 12:45 ./bin/base32
      100     12 -rw-r--r--   1 user     user        10056 May  3 12:39 ./hashes.txt
    61454     12 -rwx------   1 user     user        10048 May  3 12:45 ./bin/totp
    61366     12 -rwx------   1 user     user        10024 May  3 12:45 ./bin/hotp
    61378     12 -rwx------   1 user     user         9894 May  3 12:45 ./bin/kexec-select-boot
    61354     12 -rwx------   1 user     user         9681 May  3 12:45 ./bin/gpg-gui.sh
    61490      8 -rwx------   1 user     user         8173 May  3 12:45 ./etc/functions
    61322      8 -rwx------   1 user     user         5924 May  3 12:45 ./bin/config-gui.sh
    61418      8 -rwx------   1 user     user         5912 May  3 12:45 ./bin/qrenc
    61377      8 -rwx------   1 user     user         4178 May  3 12:45 ./bin/kexec-seal-key
    61345      4 -rwx------   1 user     user         4074 May  3 12:45 ./bin/flash-gui.sh
    61374      4 -rwx------   1 user     user         3654 May  3 12:45 ./bin/kexec-parse-boot
    61375      4 -rwx------   1 user     user         3364 May  3 12:45 ./bin/kexec-save-default
    61498      4 -rwx------   1 user     user         3322 May  3 12:45 ./init
    61370      4 -rwx------   1 user     user         3099 May  3 12:45 ./bin/kexec-boot
    61400      4 -rwx------   1 user     user         3043 May  3 12:45 ./bin/mount-usb
    61426      4 -rwx------   1 user     user         2717 May  3 12:45 ./bin/seal-libremkey
    61371      4 -rwx------   1 user     user         2344 May  3 12:45 ./bin/kexec-insert-key
    61471      4 -rwx------   1 user     user         2130 May  3 12:45 ./bin/usb-scan
    61373      4 -rwx------   1 user     user         2033 May  3 12:45 ./bin/kexec-parse-bls
    61427      4 -rwx------   1 user     user         2027 May  3 12:45 ./bin/seal-totp
    61466      4 -rwx------   1 user     user         1838 May  3 12:45 ./bin/unseal-hotp
    61346      4 -rwx------   1 user     user         1724 May  3 12:45 ./bin/flash.sh
    61376      4 -rwx------   1 user     user         1677 May  3 12:45 ./bin/kexec-save-key
    61487      4 -rw-------   1 user     user         1629 May  3 12:45 ./etc/distro/keys/qubes-4.key
    61379      4 -rwx------   1 user     user         1407 May  3 12:45 ./bin/kexec-sign-config
    61372      4 -rwx------   1 user     user         1375 May  3 12:45 ./bin/kexec-iso-init
    61530      4 -rwx------   1 user     user         1373 May  3 12:45 ./mount-boot
    61350      4 -rwx------   1 user     user         1299 May  3 12:45 ./bin/generic-init
    60093      4 -rw-------   1 user     user         1247 May  3 12:45 ./.ash_history
    61380      4 -rwx------   1 user     user         1044 May  3 12:45 ./bin/kexec-unseal-key
    61546      4 -rwx------   1 user     user         1000 May  3 12:45 ./sbin/insmod
    61535      4 -rwx------   1 user     user          922 May  3 12:45 ./sbin/config-dhcp.sh
    61318      4 -rwx------   1 user     user          799 May  3 12:45 ./bin/cbfs-init
    61381      4 -rwx------   1 user     user          770 May  3 12:45 ./bin/key-init
    61485      4 -rw-------   1 user     user          700 May  3 12:45 ./etc/config
    61457      4 -rwx------   1 user     user          694 May  3 12:45 ./bin/tpm-reset
    61403      4 -rwx------   1 user     user          675 May  3 12:45 ./bin/network-init-recovery
    61462      4 -rwx------   1 user     user          661 May  3 12:45 ./bin/uefi-init
    61467      4 -rwx------   1 user     user          634 May  3 12:45 ./bin/unseal-totp
    61479      4 -rwx------   1 user     user          574 May  3 12:45 ./bin/x230-flash.init
    61419      4 -rwx------   1 user     user          366 May  3 12:45 ./bin/qubes-measure-luks
    61348      4 -rwx------   1 user     user          360 May  3 12:45 ./bin/flashrom-kgpe-d16-openbmc.sh
    61477      4 -rwx------   1 user     user          320 May  3 12:45 ./bin/wget-measure.sh
    61420      4 -rwx------   1 user     user          258 May  3 12:45 ./bin/reboot
    61470      4 -rwx------   1 user     user          220 May  3 12:45 ./bin/usb-init
    61415      4 -rwx------   1 user     user          205 May  3 12:45 ./bin/poweroff
    61489      4 -rw-------   1 user     user          197 May  3 12:45 ./etc/fstab
    61493      4 -rw-------   1 user     user          174 May  3 12:45 ./etc/motd
    61355      4 -rwx------   1 user     user          106 May  3 12:45 ./bin/gpgv
    60437      4 -rw-------   1 user     user           73 May  3 12:45 ./.gnupg/gpg-agent.conf
    61478      4 -rwx------   1 user     user           35 May  3 12:45 ./bin/whiptail
    61497      4 -rw-------   1 user     user           27 May  3 12:45 ./etc/shells
    61496      4 -rw-------   1 user     user           27 May  3 12:45 ./etc/passwd
    61492      4 -rw-------   1 user     user           20 May  3 12:45 ./etc/hosts
    61491      4 -rw-------   1 user     user           10 May  3 12:45 ./etc/group
    61303      4 -rw-------   1 user     user           10 May  3 12:45 ./.gnupg/gpg.conf

gpg toolstack: Upgrade toolstack in an attempt to fix linuxboot#710 (…

@flammit

A public build showing that not moving along with this actual ticket or with #703 is breaking x230 support and 12Mb boards altogether, Heads having become too big.

@flammit: This build will fail at coreboot integration of cpios (CBFS region not being big enough), but artifacts will include initird.cpio.xz, heads.cpio, tools.cpio and modules.cpio for others to see the limit and dead end we are now facing.

Now what?

@tlaurion

@tlaurion is reducing the kernel size not an option, or simply too much effort?

@druimalban

The only non-Intel example I can see which you support is the old and quirky KGPE-D16

There is dasharo kgpe-d16 coreboot fork. Ast driver was good enough last time I tested but unfortunately my CPU/ram is bad and I cannot test. Native gfx init would need to be tested there too with simplefb, but yet again, workstation variants (as oppised to server variant) there relies on and/nvidia kernel drivers for which spi space constraints are not really an issue (16mb is plenty there, and 3mdeb sells the connector/spi with wp jumper which is nice).

The Dasharo port of recent Coreboot to the board suffers from faulty automatic fan control, where fans go to full speed and PWM statistics about them become unavailable. The bug occurs approximately 1/3 of the time for me. There is no apparent way to turn it off and it's not clear how it interacts with (working) fan control via openBMC. The last stable Coreboot for the board is 4.11, which is effectively four years old, and has numerous quirks which shan't be fixed, and it isn't fair to bother Coreboot developers about bugs in such an old code-base.

I have suspicions that if using the 3mdeb jumper, ground will be shorted to VCC, assuming that the board's WP pin is pulled to VCC. I do not know of any schematics, so this assumption could be wrong, and the adaptor may be safe to use. Thus I built my own adaptor which breaks out the pins albeit with WP not extending down to the board.

@druimalban : WP is supposed to be pulled to GND per https://docs.dasharo.com/variants/asus_kgpe_d16/spi-wp/ which is what is implemented with jumper and sold at https://shop.3mdeb.com/shop/adapters/flash-chip-adapters/asus-kgpe-d16-flash-chip-adapter/

I would advise into creating a separate issue to track issues you have with kgpe-d16 on dasharo github issues https://github.com/Dasharo/dasharo-issues/issues. I had forgotten about your post here until I needed to come back to the issue at stake and read your post a while ago but since it was irrelevant to issue at stake here, I didn't reply immediately and then it got forgotten.

Playing around with #1381 getting it to merge, I came up with another oneliner really useful to get to really know the size of everything being packed into the kernel.

Some small notes: Heads builds linux/coreboot in subdirs corresponding to directory name of the linux config file of a board, not in the linux extracted dir. This is the right way, since everything for an arch being compiled as artifacts with musl-cross-make can then be reused in CircleCI to make other boards reuse compiled artifacts without the need fo make distclean or any other cleaning which would require to recompiled everything, not just what differs from one board config to the other through linux config files.

I decided to take a look at current local state of tweaks and built the really now limited t520-maximized board:
make BOARD=t520-maximized
except of coreboot output at the end

# Use coreboot.rom, because custom output files might not be processed by cbfstool
"/home/user/heads/build/x86/coreboot-4.19/t520-maximized/cbfstool" "/home/user/heads/build/x86/coreboot-4.19/t520-maximized/coreboot.rom" print
FMAP REGION: COREBOOT
Name                           Offset     Type           Size   Comp
cbfs_master_header             0x0        cbfs header        32 none
fallback/romstage              0x80       stage           74024 none
cpu_microcode_blob.bin         0x12240    microcode       26624 none
fallback/ramstage              0x18a80    stage          119765 LZMA (258412 decompressed)
build_info                     0x35ec0    raw               101 none
bootsplash.jpg                 0x35f80    bootsplash      36352 none
fallback/dsdt.aml              0x3edc0    raw             14522 none
vbt.bin                        0x426c0    raw              1389 LZMA (3985 decompressed)
cmos_layout.bin                0x42c80    cmos_layout      2108 none
fallback/postcar               0x43500    stage           22200 none
fallback/payload               0x48c00    simple elf    6997108 none
(empty)                        0x6f50c0   null           879140 none
bootblock                      0x7cbb00   bootblock       17088 none
2023-06-22 12:26:28-04:00 INSTALL   build/x86/coreboot-4.19/t520-maximized/coreboot.rom => build/x86/t520-maximized/heads-t520-maximized-v0.2.0-1590-ge92624e.rom

Yes... 879140 on the empty CBFS space means we have 0.8mb left of SPI space. Not so bad still when we consider that that board has 8mb SPI.

Current experiments tweaking linux-x230-maximized.config used to build kernel 5.10.5, exerpt:

user@heads-tests-deb12:~/heads/build/x86/linux-5.10.5/linux-x230-maximized$ files=$(find ./ -name built-in.a); size -t $files | sed "s|(TOTALS)|$file|"| sort -nr
19713205	3006613	1105588	23825406	16b8bfe	
 164349	   1338	      0	 165687	  28737	./drivers/gpu/drm/i915/display/intel_display.o (ex ./drivers/gpu/drm/i915/built-in.a)
 164349	   1338	      0	 165687	  28737	./drivers/gpu/drm/i915/display/intel_display.o (ex ./drivers/gpu/drm/built-in.a)
 164349	   1338	      0	 165687	  28737	./drivers/gpu/drm/i915/display/intel_display.o (ex ./drivers/gpu/built-in.a)
 164349	   1338	      0	 165687	  28737	./drivers/gpu/drm/i915/display/intel_display.o (ex ./drivers/built-in.a)
  67591	      0	      0	  67591	  10807	./fs/unicode/utf8-norm.o (ex ./fs/unicode/built-in.a)
  67591	      0	      0	  67591	  10807	./fs/unicode/utf8-norm.o (ex ./fs/built-in.a)
  66834	   4484	    372	  71690	  1180a	./net/core/dev.o (ex ./net/core/built-in.a)
  66834	   4484	    372	  71690	  1180a	./net/core/dev.o (ex ./net/built-in.a)
  66246	    699	     76	  67021	  105cd	./net/core/filter.o (ex ./net/core/built-in.a)
  66246	    699	     76	  67021	  105cd	./net/core/filter.o (ex ./net/built-in.a)
  65530	    545	      0	  66075	  1021b	./drivers/gpu/drm/i915/display/intel_dp.o (ex ./drivers/gpu/drm/i915/built-in.a)
  65530	    545	      0	  66075	  1021b	./drivers/gpu/drm/i915/display/intel_dp.o (ex ./drivers/gpu/drm/built-in.a)
  65530	    545	      0	  66075	  1021b	./drivers/gpu/drm/i915/display/intel_dp.o (ex ./drivers/gpu/built-in.a)
  65530	    545	      0	  66075	  1021b	./drivers/gpu/drm/i915/display/intel_dp.o (ex ./drivers/built-in.a)
  63980	   3166	    956	  68102	  10a06	./kernel/events/core.o (ex ./kernel/events/built-in.a)
  63980	   3166	    956	  68102	  10a06	./kernel/events/core.o (ex ./kernel/built-in.a)
  58165	    812	    591	  59568	   e8b0	./drivers/input/serio/i8042.o (ex ./drivers/input/serio/built-in.a)
  58165	    812	    591	  59568	   e8b0	./drivers/input/serio/i8042.o (ex ./drivers/built-in.a)
  57285	     20	      0	  57305	   dfd9	./drivers/gpu/drm/drm_edid.o (ex ./drivers/gpu/drm/built-in.a)
  57285	     20	      0	  57305	   dfd9	./drivers/gpu/drm/drm_edid.o (ex ./drivers/gpu/built-in.a)
  57285	     20	      0	  57305	   dfd9	./drivers/gpu/drm/drm_edid.o (ex ./drivers/built-in.a)
  56002	    305	      0	  56307	   dbf3	./drivers/gpu/drm/i915/intel_pm.o (ex ./drivers/gpu/drm/i915/built-in.a)
  56002	    305	      0	  56307	   dbf3	./drivers/gpu/drm/i915/intel_pm.o (ex ./drivers/gpu/drm/built-in.a)
  56002	    305	      0	  56307	   dbf3	./drivers/gpu/drm/i915/intel_pm.o (ex ./drivers/gpu/built-in.a)
  56002	    305	      0	  56307	   dbf3	./drivers/gpu/drm/i915/intel_pm.o (ex ./drivers/built-in.a)
  48584	    409	   1032	  50025	   c369	./fs/ext4/super.o (ex ./fs/ext4/built-in.a)
  48584	    409	   1032	  50025	   c369	./fs/ext4/super.o (ex ./fs/built-in.a)
  42135	   2756	     48	  44939	   af8b	./drivers/ata/libata-core.o (ex ./drivers/built-in.a)
  42135	   2756	     48	  44939	   af8b	./drivers/ata/libata-core.o (ex ./drivers/ata/built-in.a)
  41490	    409	      0	  41899	   a3ab	./drivers/gpu/drm/i915/display/intel_ddi.o (ex ./drivers/gpu/drm/i915/built-in.a)
  41490	    409	      0	  41899	   a3ab	./drivers/gpu/drm/i915/display/intel_ddi.o (ex ./drivers/gpu/drm/built-in.a)
  41490	    409	      0	  41899	   a3ab	./drivers/gpu/drm/i915/display/intel_ddi.o (ex ./drivers/gpu/built-in.a)
  41490	    409	      0	  41899	   a3ab	./drivers/gpu/drm/i915/display/intel_ddi.o (ex ./drivers/built-in.a)
  41122	    323	   1048	  42493	   a5fd	./net/core/rtnetlink.o (ex ./net/core/built-in.a)
  41122	    323	   1048	  42493	   a5fd	./net/core/rtnetlink.o (ex ./net/built-in.a)
  41058	   4841	     13	  45912	   b358	./drivers/pci/quirks.o (ex ./drivers/pci/built-in.a)
  41058	   4841	     13	  45912	   b358	./drivers/pci/quirks.o (ex ./drivers/built-in.a)
  40977	   1463	   1976	  44416	   ad80	./drivers/iommu/intel/iommu.o (ex ./drivers/iommu/intel/built-in.a)
  40977	   1463	   1976	  44416	   ad80	./drivers/iommu/intel/iommu.o (ex ./drivers/iommu/built-in.a)
  40977	   1463	   1976	  44416	   ad80	./drivers/iommu/intel/iommu.o (ex ./drivers/built-in.a)
  40716	  10574	     52	  51342	   c88e	./drivers/scsi/scsi_transport_iscsi.o (ex ./drivers/scsi/built-in.a)
  40716	  10574	     52	  51342	   c88e	./drivers/scsi/scsi_transport_iscsi.o (ex ./drivers/built-in.a)
  40504	     72	      0	  40576	   9e80	./drivers/gpu/drm/drm_dp_mst_topology.o (ex ./drivers/gpu/drm/built-in.a)
  40504	     72	      0	  40576	   9e80	./drivers/gpu/drm/drm_dp_mst_topology.o (ex ./drivers/gpu/built-in.a)
  40504	     72	      0	  40576	   9e80	./drivers/gpu/drm/drm_dp_mst_topology.o (ex ./drivers/built-in.a)
  40353	    464	      0	  40817	   9f71	./fs/ext4/inode.o (ex ./fs/ext4/built-in.a)
  40353	    464	      0	  40817	   9f71	./fs/ext4/inode.o (ex ./fs/built-in.a)
  40064	   1058	      0	  41122	   a0a2	./net/core/skbuff.o (ex ./net/core/built-in.a)
  40064	   1058	      0	  41122	   a0a2	./net/core/skbuff.o (ex ./net/built-in.a)
  39971	    499	      0	  40470	   9e16	./drivers/gpu/drm/i915/display/intel_display_power.o (ex ./drivers/gpu/drm/i915/built-in.a)
  39971	    499	      0	  40470	   9e16	./drivers/gpu/drm/i915/display/intel_display_power.o (ex ./drivers/gpu/drm/built-in.a)
  39971	    499	      0	  40470	   9e16	./drivers/gpu/drm/i915/display/intel_display_power.o (ex ./drivers/gpu/built-in.a)
  39971	    499	      0	  40470	   9e16	./drivers/gpu/drm/i915/display/intel_display_power.o (ex ./drivers/built-in.a)
  36382	    808	     88	  37278	   919e	./fs/ext4/mballoc.o (ex ./fs/ext4/built-in.a)
  36382	    808	     88	  37278	   919e	./fs/ext4/mballoc.o (ex ./fs/built-in.a)
  36264	    248	      0	  36512	   8ea0	./fs/ext4/extents.o (ex ./fs/ext4/built-in.a)
  36264	    248	      0	  36512	   8ea0	./fs/ext4/extents.o (ex ./fs/built-in.a)
  36192	    756	     64	  37012	   9094	./drivers/pci/pci.o (ex ./drivers/pci/built-in.a)
  36192	    756	     64	  37012	   9094	./drivers/pci/pci.o (ex ./drivers/built-in.a)
  35293	    296	      8	  35597	   8b0d	./net/ipv4/tcp_input.o (ex ./net/ipv4/built-in.a)
  35293	    296	      8	  35597	   8b0d	./net/ipv4/tcp_input.o (ex ./net/built-in.a)
  35075	    360	      0	  35435	   8a6b	./drivers/gpu/drm/i915/display/intel_dpll_mgr.o (ex ./drivers/gpu/drm/i915/built-in.a)
  35075	    360	      0	  35435	   8a6b	./drivers/gpu/drm/i915/display/intel_dpll_mgr.o (ex ./drivers/gpu/drm/built-in.a)
  35075	    360	      0	  35435	   8a6b	./drivers/gpu/drm/i915/display/intel_dpll_mgr.o (ex ./drivers/gpu/built-in.a)
  35075	    360	      0	  35435	   8a6b	./drivers/gpu/drm/i915/display/intel_dpll_mgr.o (ex ./drivers/built-in.a)
  33798	   1160	     80	  35038	   88de	./drivers/md/dm-thin.o (ex ./drivers/md/built-in.a)
  33798	   1160	     80	  35038	   88de	./drivers/md/dm-thin.o (ex ./drivers/built-in.a)
  32238	    239	      0	  32477	   7edd	./drivers/gpu/drm/i915/i915_irq.o (ex ./drivers/gpu/drm/i915/built-in.a)
  32238	    239	      0	  32477	   7edd	./drivers/gpu/drm/i915/i915_irq.o (ex ./drivers/gpu/drm/built-in.a)
  32238	    239	      0	  32477	   7edd	./drivers/gpu/drm/i915/i915_irq.o (ex ./drivers/gpu/built-in.a)
  32238	    239	      0	  32477	   7edd	./drivers/gpu/drm/i915/i915_irq.o (ex ./drivers/built-in.a)
  31805	   4780	     62	  36647	   8f27	./kernel/rcu/tree.o (ex ./kernel/rcu/built-in.a)
  31805	   4780	     62	  36647	   8f27	./kernel/rcu/tree.o (ex ./kernel/built-in.a)
  31648	    945	     64	  32657	   7f91	./mm/page_alloc.o (ex ./mm/built-in.a)
  31558	    741	   3968	  36267	   8dab	./drivers/tty/vt/vt.o (ex ./drivers/tty/vt/built-in.a)
  31558	    741	   3968	  36267	   8dab	./drivers/tty/vt/vt.o (ex ./drivers/tty/built-in.a)
  31558	    741	   3968	  36267	   8dab	./drivers/tty/vt/vt.o (ex ./drivers/built-in.a)
  31485	     80	      0	  31565	   7b4d	./fs/ext4/namei.o (ex ./fs/ext4/built-in.a)
  31485	     80	      0	  31565	   7b4d	./fs/ext4/namei.o (ex ./fs/built-in.a)
  29496	    104	      0	  29600	   73a0	./drivers/gpu/drm/i915/display/intel_sdvo.o (ex ./drivers/gpu/drm/i915/built-in.a)
  29496	    104	      0	  29600	   73a0	./drivers/gpu/drm/i915/display/intel_sdvo.o (ex ./drivers/gpu/drm/built-in.a)
  29496	    104	      0	  29600	   73a0	./drivers/gpu/drm/i915/display/intel_sdvo.o (ex ./drivers/gpu/built-in.a)
  29496	    104	      0	  29600	   73a0	./drivers/gpu/drm/i915/display/intel_sdvo.o (ex ./drivers/built-in.a)
  29040	  12768	     46	  41854	   a37e	./arch/x86/events/intel/core.o (ex ./arch/x86/events/intel/built-in.a)
  29040	  12768	     46	  41854	   a37e	./arch/x86/events/intel/core.o (ex ./arch/x86/events/built-in.a)
  29040	  12768	     46	  41854	   a37e	./arch/x86/events/intel/core.o (ex ./arch/x86/built-in.a)
  28362	    746	      2	  29110	   71b6	./net/packet/af_packet.o (ex ./net/packet/built-in.a)
  28362	    746	      2	  29110	   71b6	./net/packet/af_packet.o (ex ./net/built-in.a)
  28337	    272	      0	  28609	   6fc1	./drivers/gpu/drm/i915/display/intel_hdmi.o (ex ./drivers/gpu/drm/i915/built-in.a)
  28337	    272	      0	  28609	   6fc1	./drivers/gpu/drm/i915/display/intel_hdmi.o (ex ./drivers/gpu/drm/built-in.a)
  28337	    272	      0	  28609	   6fc1	./drivers/gpu/drm/i915/display/intel_hdmi.o (ex ./drivers/gpu/built-in.a)
  28337	    272	      0	  28609	   6fc1	./drivers/gpu/drm/i915/display/intel_hdmi.o (ex ./drivers/built-in.a)
  27781	    178	    140	  28099	   6dc3	./net/ipv4/tcp.o (ex ./net/ipv4/built-in.a)
  27781	    178	    140	  28099	   6dc3	./net/ipv4/tcp.o (ex ./net/built-in.a)
  27723	   1152	     24	  28899	   70e3	./drivers/scsi/sd.o (ex ./drivers/scsi/built-in.a)
  27723	   1152	     24	  28899	   70e3	./drivers/scsi/sd.o (ex ./drivers/built-in.a)
  27687	   3063	    680	  31430	   7ac6	./kernel/workqueue.o (ex ./kernel/built-in.a)
  27687	    107	      0	  27794	   6c92	./net/core/neighbour.o (ex ./net/core/built-in.a)
  27687	    107	      0	  27794	   6c92	./net/core/neighbour.o (ex ./net/built-in.a)
  27257	    152	      0	  27409	   6b11	./fs/namei.o (ex ./fs/built-in.a)
  27007	   1976	      1	  28984	   7138	./drivers/ata/ahci.o (ex ./drivers/built-in.a)
  27007	   1976	      1	  28984	   7138	./drivers/ata/ahci.o (ex ./drivers/ata/built-in.a)
  26774	    240	      0	  27014	   6986	./block/blk-mq.o (ex ./block/built-in.a)
  25877	    276	   8416	  34569	   8709	./drivers/video/fbdev/core/fbcon.o (ex ./drivers/video/fbdev/core/built-in.a)
  25877	    276	   8416	  34569	   8709	./drivers/video/fbdev/core/fbcon.o (ex ./drivers/video/fbdev/built-in.a)
  25877	    276	   8416	  34569	   8709	./drivers/video/fbdev/core/fbcon.o (ex ./drivers/video/built-in.a)
  25877	    276	   8416	  34569	   8709	./drivers/video/fbdev/core/fbcon.o (ex ./drivers/built-in.a)
  25854	    464	     20	  26338	   66e2	./drivers/usb/core/hub.o (ex ./drivers/usb/core/built-in.a)
  25854	    464	     20	  26338	   66e2	./drivers/usb/core/hub.o (ex ./drivers/usb/built-in.a)
  25854	    464	     20	  26338	   66e2	./drivers/usb/core/hub.o (ex ./drivers/built-in.a)
  25313	      0	      0	  25313	   62e1	./arch/x86/purgatory/kexec-purgatory.o (ex ./arch/x86/purgatory/built-in.a)
  25313	      0	      0	  25313	   62e1	./arch/x86/purgatory/kexec-purgatory.o (ex ./arch/x86/built-in.a)
  25236	      8	      0	  25244	   629c	./lib/crc32.o (ex ./lib/built-in.a)
  25224	    128	      0	  25352	   6308	./drivers/ata/libata-eh.o (ex ./drivers/built-in.a)
  25224	    128	      0	  25352	   6308	./drivers/ata/libata-eh.o (ex ./drivers/ata/built-in.a)
  24772	    421	     32	  25225	   6289	./fs/namespace.o (ex ./fs/built-in.a)
  24608	     43	      0	  24651	   604b	./fs/proc/base.o (ex ./fs/proc/built-in.a)
  24608	     43	      0	  24651	   604b	./fs/proc/base.o (ex ./fs/built-in.a)
  24605	     16	      0	  24621	   602d	./drivers/gpu/drm/i915/gt/intel_lrc.o (ex ./drivers/gpu/drm/i915/built-in.a)
  24605	     16	      0	  24621	   602d	./drivers/gpu/drm/i915/gt/intel_lrc.o (ex ./drivers/gpu/drm/built-in.a)
  24605	     16	      0	  24621	   602d	./drivers/gpu/drm/i915/gt/intel_lrc.o (ex ./drivers/gpu/built-in.a)
  24605	     16	      0	  24621	   602d	./drivers/gpu/drm/i915/gt/intel_lrc.o (ex ./drivers/built-in.a)
  24099	    114	      0	  24213	   5e95	./drivers/gpu/drm/i915/i915_perf.o (ex ./drivers/gpu/drm/i915/built-in.a)
  24099	    114	      0	  24213	   5e95	./drivers/gpu/drm/i915/i915_perf.o (ex ./drivers/gpu/drm/built-in.a)
  24099	    114	      0	  24213	   5e95	./drivers/gpu/drm/i915/i915_perf.o (ex ./drivers/gpu/built-in.a)
  24099	    114	      0	  24213	   5e95	./drivers/gpu/drm/i915/i915_perf.o (ex ./drivers/built-in.a)
  24002	    641	     16	  24659	   6053	./drivers/md/dm-crypt.o (ex ./drivers/md/built-in.a)
  24002	    641	     16	  24659	   6053	./drivers/md/dm-crypt.o (ex ./drivers/built-in.a)
  23885	   3169	      8	  27062	   69b6	./kernel/sched/core.o (ex ./kernel/sched/built-in.a)
  23885	   3169	      8	  27062	   69b6	./kernel/sched/core.o (ex ./kernel/built-in.a)
  23763	     16	      0	  23779	   5ce3	./drivers/gpu/drm/i915/display/intel_lvds.o (ex ./drivers/gpu/drm/i915/built-in.a)
  23763	     16	      0	  23779	   5ce3	./drivers/gpu/drm/i915/display/intel_lvds.o (ex ./drivers/gpu/drm/built-in.a)
  23763	     16	      0	  23779	   5ce3	./drivers/gpu/drm/i915/display/intel_lvds.o (ex ./drivers/gpu/built-in.a)
  23763	     16	      0	  23779	   5ce3	./drivers/gpu/drm/i915/display/intel_lvds.o (ex ./drivers/built-in.a)
  23087	    316	     16	  23419	   5b7b	./net/core/sock.o (ex ./net/core/built-in.a)
  23087	    316	     16	  23419	   5b7b	./net/core/sock.o (ex ./net/built-in.a)
  22981	   2416	     60	  25457	   6371	./drivers/base/core.o (ex ./drivers/built-in.a)
  22981	   2416	     60	  25457	   6371	./drivers/base/core.o (ex ./drivers/base/built-in.a)
  22935	    132	      4	  23071	   5a1f	./fs/ext4/xattr.o (ex ./fs/ext4/built-in.a)
  22935	    132	      4	  23071	   5a1f	./fs/ext4/xattr.o (ex ./fs/built-in.a)
  22907	    792	     18	  23717	   5ca5	./net/ipv4/udp.o (ex ./net/ipv4/built-in.a)
  22907	    792	     18	  23717	   5ca5	./net/ipv4/udp.o (ex ./net/built-in.a)
  22781	    108	     96	  22985	   59c9	./kernel/sched/fair.o (ex ./kernel/sched/built-in.a)
  22781	    108	     96	  22985	   59c9	./kernel/sched/fair.o (ex ./kernel/built-in.a)
  22431	    168	     24	  22623	   585f	./mm/shmem.o (ex ./mm/built-in.a)
  22306	    196	     48	  22550	   5816	./mm/memory.o (ex ./mm/built-in.a)
  21915	 919117	 272980	1214012	 12863c	./kernel/printk/printk.o (ex ./kernel/printk/built-in.a)
  21915	 919117	 272980	1214012	 12863c	./kernel/printk/printk.o (ex ./kernel/built-in.a)
  21861	    309	     18	  22188	   56ac	./net/ethtool/ioctl.o (ex ./net/ethtool/built-in.a)
  21861	    309	     18	  22188	   56ac	./net/ethtool/ioctl.o (ex ./net/built-in.a)
  21746	    132	      0	  21878	   5576	./drivers/gpu/drm/i915/intel_uncore.o (ex ./drivers/gpu/drm/i915/built-in.a)
  21746	    132	      0	  21878	   5576	./drivers/gpu/drm/i915/intel_uncore.o (ex ./drivers/gpu/drm/built-in.a)
  21746	    132	      0	  21878	   5576	./drivers/gpu/drm/i915/intel_uncore.o (ex ./drivers/gpu/built-in.a)
  21746	    132	      0	  21878	   5576	./drivers/gpu/drm/i915/intel_uncore.o (ex ./drivers/built-in.a)
  21726	     88	    580	  22394	   577a	./drivers/ata/libata-scsi.o (ex ./drivers/built-in.a)
  21726	     88	    580	  22394	   577a	./drivers/ata/libata-scsi.o (ex ./drivers/ata/built-in.a)
  21563	    788	      8	  22359	   5757	./net/ipv4/route.o (ex ./net/ipv4/built-in.a)
  21563	    788	      8	  22359	   5757	./net/ipv4/route.o (ex ./net/built-in.a)
  21497	    185	      0	  21682	   54b2	./net/ipv4/tcp_output.o (ex ./net/ipv4/built-in.a)
  21497	    185	      0	  21682	   54b2	./net/ipv4/tcp_output.o (ex ./net/built-in.a)
  21379	    258	      0	  21637	   5485	./drivers/gpu/drm/i915/display/intel_cdclk.o (ex ./drivers/gpu/drm/i915/built-in.a)
  21379	    258	      0	  21637	   5485	./drivers/gpu/drm/i915/display/intel_cdclk.o (ex ./drivers/gpu/drm/built-in.a)
  21379	    258	      0	  21637	   5485	./drivers/gpu/drm/i915/display/intel_cdclk.o (ex ./drivers/gpu/built-in.a)
  21379	    258	      0	  21637	   5485	./drivers/gpu/drm/i915/display/intel_cdclk.o (ex ./drivers/built-in.a)
  21167	    744	     16	  21927	   55a7	./fs/buffer.o (ex ./fs/built-in.a)
  21080	    252	      8	  21340	   535c	./kernel/signal.o (ex ./kernel/built-in.a)
  20974	    281	      0	  21255	   5307	./drivers/gpu/drm/drm_atomic_helper.o (ex ./drivers/gpu/drm/built-in.a)
  20974	    281	      0	  21255	   5307	./drivers/gpu/drm/drm_atomic_helper.o (ex ./drivers/gpu/built-in.a)
  20974	    281	      0	  21255	   5307	./drivers/gpu/drm/drm_atomic_helper.o (ex ./drivers/built-in.a)
  20836	    408	    113	  21357	   536d	./drivers/usb/core/devio.o (ex ./drivers/usb/core/built-in.a)
  20836	    408	    113	  21357	   536d	./drivers/usb/core/devio.o (ex ./drivers/usb/built-in.a)
  20836	    408	    113	  21357	   536d	./drivers/usb/core/devio.o (ex ./drivers/built-in.a)
  20716	     48	      0	  20764	   511c	./drivers/gpu/drm/i915/display/intel_sprite.o (ex ./drivers/gpu/drm/i915/built-in.a)
  20716	     48	      0	  20764	   511c	./drivers/gpu/drm/i915/display/intel_sprite.o (ex ./drivers/gpu/drm/built-in.a)
  20716	     48	      0	  20764	   511c	./drivers/gpu/drm/i915/display/intel_sprite.o (ex ./drivers/gpu/built-in.a)
  20716	     48	      0	  20764	   511c	./drivers/gpu/drm/i915/display/intel_sprite.o (ex ./drivers/built-in.a)
  20621	    201	      0	  20822	   5156	./lib/iov_iter.o (ex ./lib/built-in.a)
  20564	    784	     16	  21364	   5374	./net/netlink/af_netlink.o (ex ./net/netlink/built-in.a)
  20564	    784	     16	  21364	   5374	./net/netlink/af_netlink.o (ex ./net/built-in.a)
  20530	     80	      0	  20610	   5082	./drivers/gpu/drm/i915/display/intel_hdcp.o (ex ./drivers/gpu/drm/i915/built-in.a)
  20530	     80	      0	  20610	   5082	./drivers/gpu/drm/i915/display/intel_hdcp.o (ex ./drivers/gpu/drm/built-in.a)
  20530	     80	      0	  20610	   5082	./drivers/gpu/drm/i915/display/intel_hdcp.o (ex ./drivers/gpu/built-in.a)
  20530	     80	      0	  20610	   5082	./drivers/gpu/drm/i915/display/intel_hdcp.o (ex ./drivers/built-in.a)
  20308	     40	      0	  20348	   4f7c	./drivers/hid/hid-input.o (ex ./drivers/hid/built-in.a)
  20308	     40	      0	  20348	   4f7c	./drivers/hid/hid-input.o (ex ./drivers/built-in.a)
  20295	    920	     37	  21252	   5304	./drivers/input/keyboard/atkbd.o (ex ./drivers/input/keyboard/built-in.a)
  20295	    920	     37	  21252	   5304	./drivers/input/keyboard/atkbd.o (ex ./drivers/input/built-in.a)
  20295	    920	     37	  21252	   5304	./drivers/input/keyboard/atkbd.o (ex ./drivers/built-in.a)
  20019	    760	      0	  20779	   512b	./drivers/tty/serial/serial_core.o (ex ./drivers/tty/serial/built-in.a)
  20019	    760	      0	  20779	   512b	./drivers/tty/serial/serial_core.o (ex ./drivers/tty/built-in.a)
  20019	    760	      0	  20779	   512b	./drivers/tty/serial/serial_core.o (ex ./drivers/built-in.a)
  19912	    304	      0	  20216	   4ef8	./drivers/pci/probe.o (ex ./drivers/pci/built-in.a)
  19912	    304	      0	  20216	   4ef8	./drivers/pci/probe.o (ex ./drivers/built-in.a)
  19886	    313	    112	  20311	   4f57	./drivers/iommu/intel/dmar.o (ex ./drivers/iommu/intel/built-in.a)
  19886	    313	    112	  20311	   4f57	./drivers/iommu/intel/dmar.o (ex ./drivers/iommu/built-in.a)
  19886	    313	    112	  20311	   4f57	./drivers/iommu/intel/dmar.o (ex ./drivers/built-in.a)
  19617	   1120	  17548	  38285	   958d	./arch/x86/kernel/apic/io_apic.o (ex ./arch/x86/kernel/built-in.a)
  19617	   1120	  17548	  38285	   958d	./arch/x86/kernel/apic/io_apic.o (ex ./arch/x86/kernel/apic/built-in.a)
  19617	   1120	  17548	  38285	   958d	./arch/x86/kernel/apic/io_apic.o (ex ./arch/x86/built-in.a)
  19357	    396	    276	  20029	   4e3d	./drivers/tty/tty_io.o (ex ./drivers/tty/built-in.a)
  19357	    396	    276	  20029	   4e3d	./drivers/tty/tty_io.o (ex ./drivers/built-in.a)
  19351	    568	   4136	  24055	   5df7	./net/unix/af_unix.o (ex ./net/unix/built-in.a)
  19351	    568	   4136	  24055	   5df7	./net/unix/af_unix.o (ex ./net/built-in.a)
  19348	    713	     72	  20133	   4ea5	./mm/vmalloc.o (ex ./mm/built-in.a)
  19124	    136	     40	  19300	   4b64	./kernel/bpf/core.o (ex ./kernel/built-in.a)
  19124	    136	     40	  19300	   4b64	./kernel/bpf/core.o (ex ./kernel/bpf/built-in.a)
  19006	    880	    104	  19990	   4e16	./drivers/md/dm-snap.o (ex ./drivers/md/built-in.a)
  19006	    880	    104	  19990	   4e16	./drivers/md/dm-snap.o (ex ./drivers/built-in.a)
  18874	    280	      0	  19154	   4ad2	./drivers/gpu/drm/i915/i915_pci.o (ex ./drivers/gpu/drm/i915/built-in.a)
  18874	    280	      0	  19154	   4ad2	./drivers/gpu/drm/i915/i915_pci.o (ex ./drivers/gpu/drm/built-in.a)
  18874	    280	      0	  19154	   4ad2	./drivers/gpu/drm/i915/i915_pci.o (ex ./drivers/gpu/built-in.a)
  18874	    280	      0	  19154	   4ad2	./drivers/gpu/drm/i915/i915_pci.o (ex ./drivers/built-in.a)
  18834	     32	      0	  18866	   49b2	./drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o (ex ./drivers/gpu/drm/i915/built-in.a)
  18834	     32	      0	  18866	   49b2	./drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o (ex ./drivers/gpu/drm/built-in.a)
  18834	     32	      0	  18866	   49b2	./drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o (ex ./drivers/gpu/built-in.a)
  18834	     32	      0	  18866	   49b2	./drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o (ex ./drivers/built-in.a)
  18693	    409	    104	  19206	   4b06	./fs/jbd2/journal.o (ex ./fs/jbd2/built-in.a)
  18693	    409	    104	  19206	   4b06	./fs/jbd2/journal.o (ex ./fs/built-in.a)
  18490	    188	      4	  18682	   48fa	./drivers/cdrom/cdrom.o (ex ./drivers/cdrom/built-in.a)
  18490	    188	      4	  18682	   48fa	./drivers/cdrom/cdrom.o (ex ./drivers/built-in.a)
  18370	    440	     28	  18838	   4996	./drivers/md/dm.o (ex ./drivers/md/built-in.a)
  18370	    440	     28	  18838	   4996	./drivers/md/dm.o (ex ./drivers/built-in.a)
  18234	   6252	      0	  24486	   5fa6	./mm/filemap.o (ex ./mm/built-in.a)
  18103	     65	      0	  18168	   46f8	./drivers/base/regmap/regmap.o (ex ./drivers/built-in.a)
  18103	     65	      0	  18168	   46f8	./drivers/base/regmap/regmap.o (ex ./drivers/base/regmap/built-in.a)
  18103	     65	      0	  18168	   46f8	./drivers/base/regmap/regmap.o (ex ./drivers/base/built-in.a)
  18083	   1184	     16	  19283	   4b53	./drivers/input/input.o (ex ./drivers/input/built-in.a)
  18083	   1184	     16	  19283	   4b53	./drivers/input/input.o (ex ./drivers/built-in.a)
  18079	   1117	      8	  19204	   4b04	./drivers/ata/libahci.o (ex ./drivers/built-in.a)
  18079	   1117	      8	  19204	   4b04	./drivers/ata/libahci.o (ex ./drivers/ata/built-in.a)
  17902	    505	     12	  18419	   47f3	./drivers/hid/hid-core.o (ex ./drivers/hid/built-in.a)
  17902	    505	     12	  18419	   47f3	./drivers/hid/hid-core.o (ex ./drivers/built-in.a)
  17736	    666	     28	  18430	   47fe	./net/socket.o (ex ./net/built-in.a)
  17602	    310	      1	  17913	   45f9	./mm/mmap.o (ex ./mm/built-in.a)
  17316	    412	     56	  17784	   4578	./drivers/acpi/ec.o (ex ./drivers/built-in.a)
  17316	    412	     56	  17784	   4578	./drivers/acpi/ec.o (ex ./drivers/acpi/built-in.a)
  17309	    816	    104	  18229	   4735	./kernel/module.o (ex ./kernel/built-in.a)
  17299	    481	     18	  17798	   4586	./drivers/acpi/acpi_video.o (ex ./drivers/built-in.a)
  17299	    481	     18	  17798	   4586	./drivers/acpi/acpi_video.o (ex ./drivers/acpi/built-in.a)
  17280	    692	      0	  17972	   4634	./drivers/nvdimm/namespace_devs.o (ex ./drivers/nvdimm/built-in.a)
  17280	    692	      0	  17972	   4634	./drivers/nvdimm/namespace_devs.o (ex ./drivers/built-in.a)
  17267	    393	     44	  17704	   4528	./drivers/clk/clk.o (ex ./drivers/clk/built-in.a)
  17267	    393	     44	  17704	   4528	./drivers/clk/clk.o (ex ./drivers/built-in.a)
  17182	   2148	     64	  19394	   4bc2	./drivers/cpufreq/cpufreq.o (ex ./drivers/cpufreq/built-in.a)
  17182	   2148	     64	  19394	   4bc2	./drivers/cpufreq/cpufreq.o (ex ./drivers/built-in.a)
  17163	    961	    112	  18236	   473c	./mm/percpu.o (ex ./mm/built-in.a)
  17098	    130	      8	  17236	   4354	./fs/fat/inode.o (ex ./fs/fat/built-in.a)
  17098	    130	      8	  17236	   4354	./fs/fat/inode.o (ex ./fs/built-in.a)
  16972	     80	      0	  17052	   429c	./drivers/gpu/drm/i915/display/icl_dsi.o (ex ./drivers/gpu/drm/i915/built-in.a)
  16972	     80	      0	  17052	   429c	./drivers/gpu/drm/i915/display/icl_dsi.o (ex ./drivers/gpu/drm/built-in.a)
  16972	     80	      0	  17052	   429c	./drivers/gpu/drm/i915/display/icl_dsi.o (ex ./drivers/gpu/built-in.a)
  16972	     80	      0	  17052	   429c	./drivers/gpu/drm/i915/display/icl_dsi.o (ex ./drivers/built-in.a)
  16893	    264	   1888	  19045	   4a65	./fs/locks.o (ex ./fs/built-in.a)
  16890	    294	      0	  17184	   4320	./drivers/gpu/drm/drm_vblank.o (ex ./drivers/gpu/drm/built-in.a)
  16890	    294	      0	  17184	   4320	./drivers/gpu/drm/drm_vblank.o (ex ./drivers/gpu/built-in.a)
  16890	    294	      0	  17184	   4320	./drivers/gpu/drm/drm_vblank.o (ex ./drivers/built-in.a)
  16803	    712	    576	  18091	   46ab	./net/ipv4/tcp_ipv4.o (ex ./net/ipv4/built-in.a)
  16803	    712	    576	  18091	   46ab	./net/ipv4/tcp_ipv4.o (ex ./net/built-in.a)
  16758	     80	      0	  16838	   41c6	./fs/ext4/resize.o (ex ./fs/ext4/built-in.a)
  16758	     80	      0	  16838	   41c6	./fs/ext4/resize.o (ex ./fs/built-in.a)
  16647	     40	      0	  16687	   412f	./drivers/gpu/drm/i915/gem/i915_gem_context.o (ex ./drivers/gpu/drm/i915/built-in.a)
  16647	     40	      0	  16687	   412f	./drivers/gpu/drm/i915/gem/i915_gem_context.o (ex ./drivers/gpu/drm/built-in.a)
  16647	     40	      0	  16687	   412f	./drivers/gpu/drm/i915/gem/i915_gem_context.o (ex ./drivers/gpu/built-in.a)
  16647	     40	      0	  16687	   412f	./drivers/gpu/drm/i915/gem/i915_gem_context.o (ex ./drivers/built-in.a)
  16577	    144	      0	  16721	   4151	./drivers/gpu/drm/i915/display/intel_panel.o (ex ./drivers/gpu/drm/i915/built-in.a)
  16577	    144	      0	  16721	   4151	./drivers/gpu/drm/i915/display/intel_panel.o (ex ./drivers/gpu/drm/built-in.a)
  16577	    144	      0	  16721	   4151	./drivers/gpu/drm/i915/display/intel_panel.o (ex ./drivers/gpu/built-in.a)
  16577	    144	      0	  16721	   4151	./drivers/gpu/drm/i915/display/intel_panel.o (ex ./drivers/built-in.a)
  16546	    297	     28	  16871	   41e7	./drivers/scsi/sg.o (ex ./drivers/scsi/built-in.a)
  16546	    297	     28	  16871	   41e7	./drivers/scsi/sg.o (ex ./drivers/built-in.a)
  16379	    476	   8192	  25047	   61d7	./fs/dcache.o (ex ./fs/built-in.a)
  16326	     41	      0	  16367	   3fef	./drivers/gpu/drm/i915/display/intel_bios.o (ex ./drivers/gpu/drm/i915/built-in.a)
  16326	     41	      0	  16367	   3fef	./drivers/gpu/drm/i915/display/intel_bios.o (ex ./drivers/gpu/drm/built-in.a)
  16326	     41	      0	  16367	   3fef	./drivers/gpu/drm/i915/display/intel_bios.o (ex ./drivers/gpu/built-in.a)
  16326	     41	      0	  16367	   3fef	./drivers/gpu/drm/i915/display/intel_bios.o (ex ./drivers/built-in.a)
  16255	      8	      1	  16264	   3f88	./drivers/gpu/drm/i915/i915_gpu_error.o (ex ./drivers/gpu/drm/i915/built-in.a)
  16255	      8	      1	  16264	   3f88	./drivers/gpu/drm/i915/i915_gpu_error.o (ex ./drivers/gpu/drm/built-in.a)
  16255	      8	      1	  16264	   3f88	./drivers/gpu/drm/i915/i915_gpu_error.o (ex ./drivers/gpu/built-in.a)
  16255	      8	      1	  16264	   3f88	./drivers/gpu/drm/i915/i915_gpu_error.o (ex ./drivers/built-in.a)
  16219	     32	      0	  16251	   3f7b	./drivers/gpu/drm/drm_ioctl.o (ex ./drivers/gpu/drm/built-in.a)
  16219	     32	      0	  16251	   3f7b	./drivers/gpu/drm/drm_ioctl.o (ex ./drivers/gpu/built-in.a)
  16219	     32	      0	  16251	   3f7b	./drivers/gpu/drm/drm_ioctl.o (ex ./drivers/built-in.a)
  16169	   8952	    128	  25249	   62a1	./arch/x86/events/core.o (ex ./arch/x86/events/built-in.a)
  16169	   8952	    128	  25249	   62a1	./arch/x86/events/core.o (ex ./arch/x86/built-in.a)
  16142	    232	      0	  16374	   3ff6	./drivers/tty/serial/8250/8250_port.o (ex ./drivers/tty/serial/built-in.a)
  16142	    232	      0	  16374	   3ff6	./drivers/tty/serial/8250/8250_port.o (ex ./drivers/tty/serial/8250/built-in.a)
  16142	    232	      0	  16374	   3ff6	./drivers/tty/serial/8250/8250_port.o (ex ./drivers/tty/built-in.a)
  16142	    232	      0	  16374	   3ff6	./drivers/tty/serial/8250/8250_port.o (ex ./drivers/built-in.a)
  16132	    202	     16	  16350	   3fde	./drivers/scsi/scsi_lib.o (ex ./drivers/scsi/built-in.a)
  16132	    202	     16	  16350	   3fde	./drivers/scsi/scsi_lib.o (ex ./drivers/built-in.a)
  16070	    104	      0	  16174	   3f2e	./drivers/gpu/drm/i915/display/intel_psr.o (ex ./drivers/gpu/drm/i915/built-in.a)
  16070	    104	      0	  16174	   3f2e	./drivers/gpu/drm/i915/display/intel_psr.o (ex ./drivers/gpu/drm/built-in.a)
  16070	    104	      0	  16174	   3f2e	./drivers/gpu/drm/i915/display/intel_psr.o (ex ./drivers/gpu/built-in.a)
  16070	    104	      0	  16174	   3f2e	./drivers/gpu/drm/i915/display/intel_psr.o (ex ./drivers/built-in.a)
  16054	    404	     16	  16474	   405a	./drivers/iommu/iommu.o (ex ./drivers/iommu/built-in.a)
  16054	    404	     16	  16474	   405a	./drivers/iommu/iommu.o (ex ./drivers/built-in.a)
  16014	    292	      8	  16314	   3fba	./kernel/futex.o (ex ./kernel/built-in.a)
  15959	    196	      0	  16155	   3f1b	./mm/vmscan.o (ex ./mm/built-in.a)
  15903	    889	     88	  16880	   41f0	./drivers/block/loop.o (ex ./drivers/built-in.a)
  15903	    889	     88	  16880	   41f0	./drivers/block/loop.o (ex ./drivers/block/built-in.a)
  15900	    128	      0	  16028	   3e9c	./fs/ext4/inline.o (ex ./fs/ext4/built-in.a)
  15900	    128	      0	  16028	   3e9c	./fs/ext4/inline.o (ex ./fs/built-in.a)
  15866	   2193	     56	  18115	   46c3	./drivers/cpufreq/intel_pstate.o (ex ./drivers/cpufreq/built-in.a)
  15866	   2193	     56	  18115	   46c3	./drivers/cpufreq/intel_pstate.o (ex ./drivers/built-in.a)
  15699	    867	   2048	  18614	   48b6	./net/ipv4/devinet.o (ex ./net/ipv4/built-in.a)
  15699	    867	   2048	  18614	   48b6	./net/ipv4/devinet.o (ex ./net/built-in.a)
  15576	    116	     36	  15728	   3d70	./arch/x86/kernel/reboot.o (ex ./arch/x86/kernel/built-in.a)
  15576	    116	     36	  15728	   3d70	./arch/x86/kernel/reboot.o (ex ./arch/x86/built-in.a)
  15525	    236	     76	  15837	   3ddd	./kernel/fork.o (ex ./kernel/built-in.a)
  15472	     40	      0	  15512	   3c98	./drivers/md/dm-thin-metadata.o (ex ./drivers/md/built-in.a)
  15472	     40	      0	  15512	   3c98	./drivers/md/dm-thin-metadata.o (ex ./drivers/built-in.a)
  15459	     60	      4	  15523	   3ca3	./net/ipv4/fib_trie.o (ex ./net/ipv4/built-in.a)
  15459	     60	      4	  15523	   3ca3	./net/ipv4/fib_trie.o (ex ./net/built-in.a)
  15382	      8	      0	  15390	   3c1e	./drivers/gpu/drm/i915/i915_cmd_parser.o (ex ./drivers/gpu/drm/i915/built-in.a)
  15382	      8	      0	  15390	   3c1e	./drivers/gpu/drm/i915/i915_cmd_parser.o (ex ./drivers/gpu/drm/built-in.a)
  15382	      8	      0	  15390	   3c1e	./drivers/gpu/drm/i915/i915_cmd_parser.o (ex ./drivers/gpu/built-in.a)
  15382	      8	      0	  15390	   3c1e	./drivers/gpu/drm/i915/i915_cmd_parser.o (ex ./drivers/built-in.a)
  15333	    200	   2048	  17581	   44ad	./drivers/md/dm-ioctl.o (ex ./drivers/md/built-in.a)
  15333	    200	   2048	  17581	   44ad	./drivers/md/dm-ioctl.o (ex ./drivers/built-in.a)
  15279	    592	     32	  15903	   3e1f	./drivers/acpi/scan.o (ex ./drivers/built-in.a)
  15279	    592	     32	  15903	   3e1f	./drivers/acpi/scan.o (ex ./drivers/acpi/built-in.a)
  15163	     96	      3	  15262	   3b9e	./drivers/input/mouse/synaptics.o (ex ./drivers/input/mouse/built-in.a)
  15163	     96	      3	  15262	   3b9e	./drivers/input/mouse/synaptics.o (ex ./drivers/input/built-in.a)
  15163	     96	      3	  15262	   3b9e	./drivers/input/mouse/synaptics.o (ex ./drivers/built-in.a)
  15034	     32	      0	  15066	   3ada	./drivers/gpu/drm/i915/display/vlv_dsi.o (ex ./drivers/gpu/drm/i915/built-in.a)
  15034	     32	      0	  15066	   3ada	./drivers/gpu/drm/i915/display/vlv_dsi.o (ex ./drivers/gpu/drm/built-in.a)
  15034	     32	      0	  15066	   3ada	./drivers/gpu/drm/i915/display/vlv_dsi.o (ex ./drivers/gpu/built-in.a)
  15034	     32	      0	  15066	   3ada	./drivers/gpu/drm/i915/display/vlv_dsi.o (ex ./drivers/built-in.a)
  14934	    716	     13	  15663	   3d2f	./drivers/input/mouse/psmouse-base.o (ex ./drivers/input/mouse/built-in.a)
  14934	    716	     13	  15663	   3d2f	./drivers/input/mouse/psmouse-base.o (ex ./drivers/input/built-in.a)
  14934	    716	     13	  15663	   3d2f	./drivers/input/mouse/psmouse-base.o (ex ./drivers/built-in.a)
  14905	    298	     36	  15239	   3b87	./kernel/irq/manage.o (ex ./kernel/irq/built-in.a)
  14905	    298	     36	  15239	   3b87	./kernel/irq/manage.o (ex ./kernel/built-in.a)
  14773	      0	      0	  14773	   39b5	./arch/x86/entry/entry_64.o (ex ./arch/x86/entry/built-in.a)
  14773	      0	      0	  14773	   39b5	./arch/x86/entry/entry_64.o (ex ./arch/x86/built-in.a)
  14771	     48	      0	  14819	   39e3	./drivers/gpu/drm/i915/display/intel_color.o (ex ./drivers/gpu/drm/i915/built-in.a)
  14771	     48	      0	  14819	   39e3	./drivers/gpu/drm/i915/display/intel_color.o (ex ./drivers/gpu/drm/built-in.a)
  14771	     48	      0	  14819	   39e3	./drivers/gpu/drm/i915/display/intel_color.o (ex ./drivers/gpu/built-in.a)
  14771	     48	      0	  14819	   39e3	./drivers/gpu/drm/i915/display/intel_color.o (ex ./drivers/built-in.a)
  14767	    168	      0	  14935	   3a57	./net/ipv4/nexthop.o (ex ./net/ipv4/built-in.a)
  14767	    168	      0	  14935	   3a57	./net/ipv4/nexthop.o (ex ./net/built-in.a)
  14707	     36	      4	  14747	   399b	./drivers/pci/setup-bus.o (ex ./drivers/pci/built-in.a)
  14707	     36	      4	  14747	   399b	./drivers/pci/setup-bus.o (ex ./drivers/built-in.a)
  14569	   2580	   3744	  20893	   519d	./arch/x86/kernel/cpu/mce/core.o (ex ./arch/x86/kernel/cpu/mce/built-in.a)
  14569	   2580	   3744	  20893	   519d	./arch/x86/kernel/cpu/mce/core.o (ex ./arch/x86/kernel/cpu/built-in.a)
  14569	   2580	   3744	  20893	   519d	./arch/x86/kernel/cpu/mce/core.o (ex ./arch/x86/kernel/built-in.a)
  14569	   2580	   3744	  20893	   519d	./arch/x86/kernel/cpu/mce/core.o (ex ./arch/x86/built-in.a)
  14536	     72	      0	  14608	   3910	./kernel/sys.o (ex ./kernel/built-in.a)
  14473	    144	      4	  14621	   391d	./drivers/usb/core/message.o (ex ./drivers/usb/core/built-in.a)
  14473	    144	      4	  14621	   391d	./drivers/usb/core/message.o (ex ./drivers/usb/built-in.a)
  14473	    144	      4	  14621	   391d	./drivers/usb/core/message.o (ex ./drivers/built-in.a)
  14353	    312	    571	  15236	   3b84	./drivers/tty/vt/keyboard.o (ex ./drivers/tty/vt/built-in.a)
  14353	    312	    571	  15236	   3b84	./drivers/tty/vt/keyboard.o (ex ./drivers/tty/built-in.a)
  14353	    312	    571	  15236	   3b84	./drivers/tty/vt/keyboard.o (ex ./drivers/built-in.a)
  14252	    368	    216	  14836	   39f4	./drivers/md/dm-bufio.o (ex ./drivers/md/built-in.a)
  14252	    368	    216	  14836	   39f4	./drivers/md/dm-bufio.o (ex ./drivers/built-in.a)
  14156	    464	      8	  14628	   3924	./fs/jbd2/transaction.o (ex ./fs/jbd2/built-in.a)
  14156	    464	      8	  14628	   3924	./fs/jbd2/transaction.o (ex ./fs/built-in.a)
  14149	      0	      0	  14149	   3745	./arch/x86/crypto/sha512-avx-asm.o (ex ./arch/x86/crypto/built-in.a)
  14149	      0	      0	  14149	   3745	./arch/x86/crypto/sha512-avx-asm.o (ex ./arch/x86/built-in.a)
  14117	      0	      0	  14117	   3725	./arch/x86/crypto/sha512-ssse3-asm.o (ex ./arch/x86/crypto/built-in.a)
  14117	      0	      0	  14117	   3725	./arch/x86/crypto/sha512-ssse3-asm.o (ex ./arch/x86/built-in.a)
  14077	     64	      0	  14141	   373d	./net/ipv4/ip_output.o (ex ./net/ipv4/built-in.a)
  14077	     64	      0	  14141	   373d	./net/ipv4/ip_output.o (ex ./net/built-in.a)
  13964	   1064	   2088	  17116	   42dc	./block/genhd.o (ex ./block/built-in.a)
  13931	   1540	     32	  15503	   3c8f	./mm/slub.o (ex ./mm/built-in.a)
  13874	     49	      0	  13923	   3663	./drivers/gpu/drm/i915/gt/intel_engine_cs.o (ex ./drivers/gpu/drm/i915/built-in.a)
  13874	     49	      0	  13923	   3663	./drivers/gpu/drm/i915/gt/intel_engine_cs.o (ex ./drivers/gpu/drm/built-in.a)
  13874	     49	      0	  13923	   3663	./drivers/gpu/drm/i915/gt/intel_engine_cs.o (ex ./drivers/gpu/built-in.a)
  13874	     49	      0	  13923	   3663	./drivers/gpu/drm/i915/gt/intel_engine_cs.o (ex ./drivers/built-in.a)
  13861	    331	     20	  14212	   3784	./drivers/usb/core/hcd.o (ex ./drivers/usb/core/built-in.a)
  13861	    331	     20	  14212	   3784	./drivers/usb/core/hcd.o (ex ./drivers/usb/built-in.a)
  13861	    331	     20	  14212	   3784	./drivers/usb/core/hcd.o (ex ./drivers/built-in.a)
  13740	    249	     24	  14013	   36bd	./kernel/sched/deadline.o (ex ./kernel/sched/built-in.a)
  13740	    249	     24	  14013	   36bd	./kernel/sched/deadline.o (ex ./kernel/built-in.a)
  13675	    205	      1	  13881	   3639	./drivers/gpu/drm/drm_fb_helper.o (ex ./drivers/gpu/drm/built-in.a)
  13675	    205	      1	  13881	   3639	./drivers/gpu/drm/drm_fb_helper.o (ex ./drivers/gpu/built-in.a)
  13675	    205	      1	  13881	   3639	./drivers/gpu/drm/drm_fb_helper.o (ex ./drivers/built-in.a)
  13631	    568	      0	  14199	   3777	./arch/x86/kernel/early-quirks.o (ex ./arch/x86/kernel/built-in.a)
  13631	    568	      0	  14199	   3777	./arch/x86/kernel/early-quirks.o (ex ./arch/x86/built-in.a)
  13556	    276	     68	  13900	   364c	./fs/inode.o (ex ./fs/built-in.a)
  13431	    312	      0	  13743	   35af	./drivers/tty/n_tty.o (ex ./drivers/tty/built-in.a)
  13431	    312	      0	  13743	   35af	./drivers/tty/n_tty.o (ex ./drivers/built-in.a)
  13400	   1040	      8	  14448	   3870	./drivers/i2c/i2c-core-base.o (ex ./drivers/i2c/built-in.a)
  13400	   1040	      8	  14448	   3870	./drivers/i2c/i2c-core-base.o (ex ./drivers/built-in.a)
  13305	   1883	   4164	  19352	   4b98	./arch/x86/kernel/apic/apic.o (ex ./arch/x86/kernel/built-in.a)
  13305	   1883	   4164	  19352	   4b98	./arch/x86/kernel/apic/apic.o (ex ./arch/x86/kernel/apic/built-in.a)
  13305	   1883	   4164	  19352	   4b98	./arch/x86/kernel/apic/apic.o (ex ./arch/x86/built-in.a)
  13217	    320	     48	  13585	   3511	./arch/x86/kernel/acpi/boot.o (ex ./arch/x86/kernel/built-in.a)
  13217	    320	     48	  13585	   3511	./arch/x86/kernel/acpi/boot.o (ex ./arch/x86/kernel/acpi/built-in.a)
  13217	    320	     48	  13585	   3511	./arch/x86/kernel/acpi/boot.o (ex ./arch/x86/built-in.a)
  13168	    244	    224	  13636	   3544	./fs/block_dev.o (ex ./fs/built-in.a)
  13154	     48	      8	  13210	   339a	./fs/ext4/fast_commit.o (ex ./fs/ext4/built-in.a)
  13154	     48	      8	  13210	   339a	./fs/ext4/fast_commit.o (ex ./fs/built-in.a)
  13146	     64	     32	  13242	   33ba	./arch/x86/pci/common.o (ex ./arch/x86/pci/built-in.a)
  12977	    688	      0	  13665	   3561	./drivers/gpu/drm/drm_connector.o (ex ./drivers/gpu/drm/built-in.a)
  12977	    688	      0	  13665	   3561	./drivers/gpu/drm/drm_connector.o (ex ./drivers/gpu/built-in.a)
  12977	    688	      0	  13665	   3561	./drivers/gpu/drm/drm_connector.o (ex ./drivers/built-in.a)
  12971	     35	     12	  13018	   32da	./drivers/gpu/drm/i915/gt/intel_rps.o (ex ./drivers/gpu/drm/i915/built-in.a)
  12971	     35	     12	  13018	   32da	./drivers/gpu/drm/i915/gt/intel_rps.o (ex ./drivers/gpu/drm/built-in.a)
  12971	     35	     12	  13018	   32da	./drivers/gpu/drm/i915/gt/intel_rps.o (ex ./drivers/gpu/built-in.a)
  12971	     35	     12	  13018	   32da	./drivers/gpu/drm/i915/gt/intel_rps.o (ex ./drivers/built-in.a)
  12874	     72	      0	  12946	   3292	./drivers/hid/hid-quirks.o (ex ./drivers/hid/built-in.a)
  12874	     72	      0	  12946	   3292	./drivers/hid/hid-quirks.o (ex ./drivers/built-in.a)
  12484	     40	     89	  12613	   3145	./drivers/acpi/video_detect.o (ex ./drivers/built-in.a)
  12484	     40	     89	  12613	   3145	./drivers/acpi/video_detect.o (ex ./drivers/acpi/built-in.a)
  12371	     72	      0	  12443	   309b	./drivers/md/dm-table.o (ex ./drivers/md/built-in.a)
  12371	     72	      0	  12443	   309b	./drivers/md/dm-table.o (ex ./drivers/built-in.a)
  12313	   3168	      4	  15485	   3c7d	./net/core/net-sysfs.o (ex ./net/core/built-in.a)
  12313	   3168	      4	  15485	   3c7d	./net/core/net-sysfs.o (ex ./net/built-in.a)
  12204	    648	    208	  13060	   3304	./net/ipv4/af_inet.o (ex ./net/ipv4/built-in.a)
  12204	    648	    208	  13060	   3304	./net/ipv4/af_inet.o (ex ./net/built-in.a)
  12120	     16	      0	  12136	   2f68	./fs/fat/dir.o (ex ./fs/fat/built-in.a)
  12120	     16	      0	  12136	   2f68	./fs/fat/dir.o (ex ./fs/built-in.a)
  12091	     40	      0	  12131	   2f63	./fs/ext4/ialloc.o (ex ./fs/ext4/built-in.a)
  12091	     40	      0	  12131	   2f63	./fs/ext4/ialloc.o (ex ./fs/built-in.a)
  11933	    296	    224	  12453	   30a5	./fs/iomap/buffered-io.o (ex ./fs/iomap/built-in.a)
  11933	    296	    224	  12453	   30a5	./fs/iomap/buffered-io.o (ex ./fs/built-in.a)
  11802	   9713	     20	  21535	   541f	./kernel/cpu.o (ex ./kernel/built-in.a)
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  11639	     64	      0	  11703	   2db7	./drivers/gpu/drm/drm_dp_helper.o (ex ./drivers/gpu/built-in.a)
  11639	     64	      0	  11703	   2db7	./drivers/gpu/drm/drm_dp_helper.o (ex ./drivers/built-in.a)
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  11635	    312	      9	  11956	   2eb4	./drivers/thermal/thermal_core.o (ex ./drivers/built-in.a)
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  11618	   2840	    352	  14810	   39da	./drivers/scsi/scsi_sysfs.o (ex ./drivers/built-in.a)
  11459	    112	      0	  11571	   2d33	./drivers/gpu/drm/drm_atomic.o (ex ./drivers/gpu/drm/built-in.a)
  11459	    112	      0	  11571	   2d33	./drivers/gpu/drm/drm_atomic.o (ex ./drivers/gpu/built-in.a)
  11459	    112	      0	  11571	   2d33	./drivers/gpu/drm/drm_atomic.o (ex ./drivers/built-in.a)
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  11445	     83	     44	  11572	   2d34	./arch/x86/mm/pat/set_memory.o (ex ./arch/x86/mm/built-in.a)
  11445	     83	     44	  11572	   2d34	./arch/x86/mm/pat/set_memory.o (ex ./arch/x86/built-in.a)
  11425	    120	     12	  11557	   2d25	./fs/super.o (ex ./fs/built-in.a)
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  11339	     16	      0	  11355	   2c5b	./fs/exfat/namei.o (ex ./fs/exfat/built-in.a)
  11339	     16	      0	  11355	   2c5b	./fs/exfat/namei.o (ex ./fs/built-in.a)
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  11336	     73	      0	  11409	   2c91	./drivers/gpu/drm/i915/display/intel_audio.o (ex ./drivers/gpu/built-in.a)
  11336	     73	      0	  11409	   2c91	./drivers/gpu/drm/i915/display/intel_audio.o (ex ./drivers/built-in.a)
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  11312	    128	      4	  11444	   2cb4	./drivers/scsi/scsi_scan.o (ex ./drivers/built-in.a)
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  11187	     96	      8	  11291	   2c1b	./arch/x86/kernel/cpu/intel.o (ex ./arch/x86/kernel/built-in.a)
  11187	     96	      8	  11291	   2c1b	./arch/x86/kernel/cpu/intel.o (ex ./arch/x86/built-in.a)
  11155	    469	      0	  11624	   2d68	./drivers/md/dm-verity-target.o (ex ./drivers/md/built-in.a)
  11155	    469	      0	  11624	   2d68	./drivers/md/dm-verity-target.o (ex ./drivers/built-in.a)
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  11126	   9530	    168	  20824	   5158	./arch/x86/events/intel/ds.o (ex ./arch/x86/events/built-in.a)
  11126	   9530	    168	  20824	   5158	./arch/x86/events/intel/ds.o (ex ./arch/x86/built-in.a)
  11118	     86	      6	  11210	   2bca	./drivers/scsi/scsi_error.o (ex ./drivers/scsi/built-in.a)
  11118	     86	      6	  11210	   2bca	./drivers/scsi/scsi_error.o (ex ./drivers/built-in.a)
  11079	    129	      0	  11208	   2bc8	./net/ipv4/fib_frontend.o (ex ./net/ipv4/built-in.a)
  11079	    129	      0	  11208	   2bc8	./net/ipv4/fib_frontend.o (ex ./net/built-in.a)
  11060	     40	   2076	  13176	   3378	./net/ipv4/fib_semantics.o (ex ./net/ipv4/built-in.a)
  11060	     40	   2076	  13176	   3378	./net/ipv4/fib_semantics.o (ex ./net/built-in.a)
  10951	     88	      8	  11047	   2b27	./fs/isofs/inode.o (ex ./fs/isofs/built-in.a)
  10951	     88	      8	  11047	   2b27	./fs/isofs/inode.o (ex ./fs/built-in.a)
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  10917	    258	     42	  11217	   2bd1	./arch/x86/kernel/cpu/bugs.o (ex ./arch/x86/kernel/built-in.a)
  10917	    258	     42	  11217	   2bd1	./arch/x86/kernel/cpu/bugs.o (ex ./arch/x86/built-in.a)
  10912	      0	      0	  10912	   2aa0	./drivers/gpu/drm/i915/gt/debugfs_gt_pm.o (ex ./drivers/gpu/drm/i915/built-in.a)
  10912	      0	      0	  10912	   2aa0	./drivers/gpu/drm/i915/gt/debugfs_gt_pm.o (ex ./drivers/gpu/drm/built-in.a)
  10912	      0	      0	  10912	   2aa0	./drivers/gpu/drm/i915/gt/debugfs_gt_pm.o (ex ./drivers/gpu/built-in.a)
  10912	      0	      0	  10912	   2aa0	./drivers/gpu/drm/i915/gt/debugfs_gt_pm.o (ex ./drivers/built-in.a)
  10883	  12079	     32	  22994	   59d2	./mm/memblock.o (ex ./mm/built-in.a)
  10776	     80	    156	  11012	   2b04	./mm/page-writeback.o (ex ./mm/built-in.a)
  10696	    152	     16	  10864	   2a70	./fs/ext4/extents_status.o (ex ./fs/ext4/built-in.a)
  10696	    152	     16	  10864	   2a70	./fs/ext4/extents_status.o (ex ./fs/built-in.a)
  10690	    621	    736	  12047	   2f0f	./kernel/time/timekeeping.o (ex ./kernel/time/built-in.a)
  10690	    621	    736	  12047	   2f0f	./kernel/time/timekeeping.o (ex ./kernel/built-in.a)
  10615	     96	      0	  10711	   29d7	./fs/read_write.o (ex ./fs/built-in.a)
  10602	    230	      0	  10832	   2a50	./net/ipv4/igmp.o (ex ./net/ipv4/built-in.a)
  10602	    230	      0	  10832	   2a50	./net/ipv4/igmp.o (ex ./net/built-in.a)
  10550	     16	      0	  10566	   2946	./drivers/gpu/drm/i915/display/intel_tv.o (ex ./drivers/gpu/drm/i915/built-in.a)
  10550	     16	      0	  10566	   2946	./drivers/gpu/drm/i915/display/intel_tv.o (ex ./drivers/gpu/drm/built-in.a)
  10550	     16	      0	  10566	   2946	./drivers/gpu/drm/i915/display/intel_tv.o (ex ./drivers/gpu/built-in.a)
  10550	     16	      0	  10566	   2946	./drivers/gpu/drm/i915/display/intel_tv.o (ex ./drivers/built-in.a)
  10495	    764	     24	  11283	   2c13	./arch/x86/kernel/smpboot.o (ex ./arch/x86/kernel/built-in.a)
  10495	    764	     24	  11283	   2c13	./arch/x86/kernel/smpboot.o (ex ./arch/x86/built-in.a)
  10365	    617	    672	  11654	   2d86	./drivers/char/random.o (ex ./drivers/char/built-in.a)
  10365	    617	    672	  11654	   2d86	./drivers/char/random.o (ex ./drivers/built-in.a)
  10248	    693	     24	  10965	   2ad5	./drivers/acpi/battery.o (ex ./drivers/built-in.a)
  10248	    693	     24	  10965	   2ad5	./drivers/acpi/battery.o (ex ./drivers/acpi/built-in.a)
  10154	      8	      0	  10162	   27b2	./drivers/gpu/drm/i915/gt/intel_reset.o (ex ./drivers/gpu/drm/i915/built-in.a)
  10154	      8	      0	  10162	   27b2	./drivers/gpu/drm/i915/gt/intel_reset.o (ex ./drivers/gpu/drm/built-in.a)
  10154	      8	      0	  10162	   27b2	./drivers/gpu/drm/i915/gt/intel_reset.o (ex ./drivers/gpu/built-in.a)
  10154	      8	      0	  10162	   27b2	./drivers/gpu/drm/i915/gt/intel_reset.o (ex ./drivers/built-in.a)
  10146	     40	      0	  10186	   27ca	./drivers/gpu/drm/i915/gt/intel_ggtt.o (ex ./drivers/gpu/drm/i915/built-in.a)
  10146	     40	      0	  10186	   27ca	./drivers/gpu/drm/i915/gt/intel_ggtt.o (ex ./drivers/gpu/drm/built-in.a)
  10146	     40	      0	  10186	   27ca	./drivers/gpu/drm/i915/gt/intel_ggtt.o (ex ./drivers/gpu/built-in.a)
  10146	     40	      0	  10186	   27ca	./drivers/gpu/drm/i915/gt/intel_ggtt.o (ex ./drivers/built-in.a)
  10072	     89	     16	  10177	   27c1	./fs/exec.o (ex ./fs/built-in.a)
  10009	     56	      8	  10073	   2759	./fs/libfs.o (ex ./fs/built-in.a)

So we got rid of i915drm and freed 500kb in kernel switching to efifb! What next can be reduced?

Also note that each builds produce sizes.txt for easier comparison for a while now. So it's easy to test changes for size comparison across builds to help the continual quest for firmware footprint reduction

The smartcard reprovision flow added to the shared initrd (PR #2158) grew the compressed initrd by ~4.5KB. The 8MB flash boards were already at their CBFS limit, so the t420/x220 hotp-maximized variants no longer fit and were moved to unmaintained_boards (see PR #2158).

This issue needs work from board owners: recovering that space (or freeing any ~4.5KB from the shared initrd/firmware) would let these 8MB boards build again. Until then, users of those platforms are assumed to use TOTP, not HOTP, unless proven otherwise.

The promising fix path for reclaiming that ~4.5KB is PR #1991 (-Os -> -Oz, musl-cross-make gcc 15.1.0 bump), which already tracks x220-hotp-maximized size stats. If that lands and frees enough CBFS space, the t420/x220 hotp-maximized variants could return from unmaintained_boards and be re-added to CI. Not doing that work here, but linking for board owners.

boards: move EOL t420/x220 hotp-maximized variants to unmaintained

Pass -O3 and -O2 (optimize for speed) to -Os (Optimize for space)

modules: build the C modules with -Os and section GC

modules,modules/linux: build initrd payloads for size

#2214 saves x220 and t420 for a while

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Quest to reduce firmware size #590

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snmcmillan commented on Jul 5, 2019

tlaurion commented on Jul 6, 2019

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